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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _I386_SCATTERLIST_H
2#define _I386_SCATTERLIST_H
3
4struct scatterlist {
5 struct page *page;
6 unsigned int offset;
7 dma_addr_t dma_address;
8 unsigned int length;
9};
10
11/* These macros should be used after a pci_map_sg call has been done
12 * to get bus addresses of each of the SG entries and their lengths.
13 * You should only work with the number of sg entries pci_map_sg
14 * returns.
15 */
16#define sg_dma_address(sg) ((sg)->dma_address)
17#define sg_dma_len(sg) ((sg)->length)
18
19#define ISA_DMA_THRESHOLD (0x00ffffff)
20
21#endif /* !(_I386_SCATTERLIST_H) */